Loose-leaf binder



Feb. l2 1924.

A. G. SIEGERT LoosE LEAF BINDER Filed AHEC. l. v1921 Humm 4 TTR/VEYSPatented Feb. 12, 1924.

ALEXANDER G. SIEGERT, OF CHICAGO, ILLINOIS.

LOOSE-LEAF BINDER.

Analice/tion led August 1, 1921. Serial No. 489,026.

To all 'whom t may concern:

Be it known that I, ALEXANDER Gr. Sm- GERT, a citizen of the UnitedStates, residing at Chicago, in the county of Cook and State ofIllinois, have invented new and useful Improvements in Loose-LeafBinders, of which the following is a specification.

My invention relates to improvements in loose leaf binders, and itconsists in the combinations, constructions, and arrangekso ments hereindescribed and claimed.

An object of my invention is to provide a loose leaf binder of thesectional post variety which is adapted to frictionally hold the sheetsin the desired position even though the openings in the sheets of paperare larger indiameter than are the diameters of the sectional posts.

A further object of my invention is to provide a device of the characterdescribed which has a novel clamping means for holdying the sheets inposition.

A further object of my invention is to provide a. device of thecharacter described which consists of few parts and which is easy tooperate.

Other objects and advantages will appear in the following specification,vand the novel features of the invention will be particularlyl pointedout in the appended claims.

My invention is illustrated in the accompanying drawings, forming partof this application, in which- Figure 1 is a side elevation ofthedevice,

Figure 2- is a plan view of a portion of the device,

Figure 3 is a perspective view of a portion of the device, and

Figure 4 is a section along the line 4-4 of Figure 2.

By referring to the drawings, it will be seen that 1 represents thebottom plate, or cover, on which all sheets rest. .This bottom platecontains two holes, each hole reamed from the under-side, which receivethe stationary posts, 2. These stationary posts are riveted to thebottom plate. :The stationary posts receive, by means of a screw thread,the removable post sections 3. These, besides having the usual threadsto connect with other sections, have a threaded hole going through theiraxis for the purpose of receiving the knurled adjustment screw, 8. 6represents the fixed portion of the top plate, to which the top cover,15, is attached by means of a hinge, 14. Top cover, 15, is bentv at 9 toinsure close contact between said cover andthe paper under it. Topplate, 6, is permanently attached to caincase, 4, by means of screws,13. Upper plate, 6,' contains two holes, slightly larger than thediameter of the posts, into which holes lit, 'besides the posts, a metalcylinder, 7, which serves as a support, or pressure link, betweenadjustment knob 8 and top vhalf of camewedge, 5. Cam-wedge 5 contains ahole of about the same size as the diameter of the posts.

The cam wedge 5 has ya tubular shank 16 which is rotatably disposed inan opening 17 in the casing 4. The opening 17 acts as a guide for thewedge 5, and at the same time permits the wedge 5 to be rotated.

In Figure 3 I have shown a perspective view of the casing 4 and it willbe noted that the casing has cam teeth 18 integral therewith, theseteeth being disposed in an annular ring concentric with the opening 17.The cam 5 has teeth ony its under surface which are adapted to ride uponthe teeth 18 when the cam 5 is rotated. As clearly shown in the drawing,the wings 19 ofthe wedges 5 extend beyond the casing 4 and provide ameans byl which the wedges 5 may be swung or rotated. The wedges 5 carrythe collars or cylinders 7 which bear against the under side ofy theladjustment screws 8. It will therefore be apparent that if the wings 19are swung so as to dispose the portions 20 of the wedges parallel withthe outer side of the casing 4, the wedges will be forced up against thecylinder 7, and will move the casing 4 downwardly into engagement withthe leaves or sheets 21.

From the foregoing description of the various parts of the device, theoperation thereof may be readily understood. When it is desired to placeaI number of sheets 21 in the binder, the adjustment nuts 8 are removedfrom the sectional posts 3, thus permitting the casing 4 to be liftedfrom the posts 3. The leaves or sheets 21 may now be placed on the posts8, and the posts 8 built up so as to extend a slight distance above thetop of the sheets. As clearly shown in Figure 4, the posts 8 have acentral threaded bore 22 which is adapted to receive the threaded shankof the adjustment screw 8. The casing 4 may now. be disposed on theposts 8 and the cylinders 7 disposed in the openings 23 of the plate 6,whereby they will be carried by the wedges 5. The adjustment screws 8are now disposed on the posts 3 and are rotated so as to cause the underside of the adjustment screws to engage with' the tops of the cylinders7. The Wedges 5 may now be rotated by means of the wings 19 so as todispose the portions 2O of the wedges parallel with the wall of thecasing 4. s heretofore stated, this rotation of the Wedges 5 will movethe casing 4 downwardly into enga-gement with the leaves 21, whereby theleaves are frictionally held in position. In theordinary loose leafbinder of the sectional post variety, the leaves 2l. are not positivelyclamped in position. t is obvious that the openings in the leaves 2lhave to be slightly larger than the diameter of the posts 3 so as topermit the leaves 2l to be disposed over the posts The leaves 2l aretherefore not firmly held in position by the posts 3. In the ordinarybinder, a slight play between the sheets is perceptible. With my presentdevice, however, the sheets .21 are positively clamped and are heldagainst movement.

The device is simple in construction and the parts can readily be madeas metal castings. It consists of the minimum number of parts andprovides a novel means by which the sheets 21 are positively gripped.

For example, if the first digit on each line of a third-point sheetrepresents business, and the second digit on a line salesmanship thenthe third digits may represent only such items as 'pertain tosalesmanship."7 At ,the right may be seen the thumbnotches of the otherIsecond-point sheets, whose ynumbers are shown by dotted lines.

The fourth-point sheets have doubledepth indentation or cut-out sectionat the right for the purpose of leading` to the fifthpointclassifications, the numbers of whichshown by dotted linesmay be seen inthe `column of thumb-notches immediately next to the fourth-point sheet.Supposing the third digit on each line of the fourth-point :heetrepresents closing transactions7 under the heading of Salesmanshipy thenonly such items as relate to closing transactions may appear on thelines of the fourth-point sheet. The numbers shown at the bottom of thesheet by dotted lines are the other fourth-point sheets, the numbers inthe other column of thumb-notches at the right the remainder of theeccomi-point sheets.

The fifth-point sheets are about the same as the fourth-point sheets,except that the thumb-notches, which appear at the bottom of the'fourth-point sheets are entirely omitted. There are no added cutoutsections on the fifth-point sheets, as the classifications, orsub-divisions,A thereon are final, although any point may represent theiinal subdivision of topics, which depends on how minute aclassification is desired.

The following is an example of how the system operates: Supposing lwanted to lool; up what information I have or can obtain on the subjectof Records in connection with precision in closing a deal, I would referto the uppermost sheet in the index, represented by the iirst diagram ofPlate rwo, on which will be seen the names or subjects of Business,Chemistry, Music, etc. (if course, Salesmanship is a subdivision ofBusiness By referring to the second diagram, which divides Business intovarious items, will be seen Salesmanship The item of Salesmanship isthen subdivided, as per diagram No. 3, (the thirdpoint classificatiom)on which may be found Closing transactions, which is subdividedaccording to the fourth diagram, on which may be found the topicFreeision, This topic is divided as per diagram No. 5, which containsthe heading Records. Therefore, the number of the folder containing theinformation wanted is that which appears on the same line as the word.xecords, or 12345. Other subjects are subdivided in a similar manner,the diagrams appearing on Plate Two showing a complete subdivision ofthe subject Business. It will be noted that the names, or topics, arewritten on the forms or sheets,

which signifies that during the process of,v

manufacture all lines are left blank, except for the numbers, the userof the index supplying the names or subjects.

I claim:

l. A. loose leaf binder comprising a back plate, posts secured to saidback plate and being adapted to carry sheets of paper, a casing slidablymounted upon said posts, thumb screws carried by said posts, and camwedges interposed between portions of said thumb screws and the casing,and adapted to move said casing down into clamping engagement with thepaper.

2. A loose leaf binder comprising a back plate, posts secured to saidback plate and being adapted tor carry sheets of paper, a casingslidably mounted on said posts, means associated with said posts forpreventing upward movement of said casing with respect to said posts,and for moving said casing downwardly into clamping engagement with thepaper.

"3. A loose leaf binder comprising a back plate, sectional posts,secured to said back plate and being adapted to carry sheets ofz paper,a casinge slidably mounted` on said posts, means associated with saidposts for preventing upward movement of said casingwith respect to saidposts, and for moving said casing downwardly into clan'lping engagementwith the paper.

4. A loose leaf binder comprising a back mounted on said cam teeth, saidWedges beplate, sectional posts secured to said back ing adapted toengage portions of said plate and being adapted to carry sheets of thumbscrews and to move said casing into 10 paper, a casing slidably disposedon said frctional engagement with the papel` when 5 posts, thumb screwscarried by said posts, said Wedges are rotated with respect to said saidcasing having cam teeth, and cam cam teeth. Wedges carried by saidcasing, and rotatably ALEX. G. SIEGERT.

